A century after physicist Ernest Rutherford published work proving the existence of the proton, much remains to be learnt about this ubiquitous particle

The LHC’s proton run came to an end on Wednesday 24 October with an excellent result of 160 fb-1 of data accumulated since the start of 2015

Precision results from the TOTEM experiment provide further explanation on proton-proton interactions at high energies

Exploiting CERN’s know-how in trapping single particles, a team in Heidelberg has found that the proton is lighter than we thought